Multi-flavor food and/or beverage dispenser

ABSTRACT

Applicants have created an improved multi-flavor food and/or beverage dispenser including an improved nozzle for injection of flavored liquids into a base liquid. The apparatuses and systems described herein can be used with different food and beverage products including, but not limited to, frozen carbonated beverages, frozen alcoholic and non-alcoholic beverages, frozen yogurts, frozen ice creams and other dispensable food and beverage products.

CROSS REFERENCE TO RELATED APPLICATIONS

The present continuing application claims benefit of and priority toU.S. patent application Ser. No. 15/108,185, filed Feb. 8, 2016, whichclaims benefit of and priority to U.S. Provisional Patent ApplicationSer. No. 62/113,872, filed Feb. 9, 2015, the contents of each of whichare hereby incorporated by reference in its entirety.

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Not applicable.

REFERENCE TO APPENDIX

Not applicable.

BACKGROUND OF THE INVENTION

Field of the Invention. The inventions disclosed and taught hereinrelate generally to frozen beverage machines; and more specificallyrelate to an improved multi-flavor food and/or beverage dispenserincluding a nozzle for injection of flavored liquids into a base liquid.Multi-flavor food and/or beverage dispenser are described in U.S. Pat.Pub. No. US 2008/0041876, the relevant disclosure of which isincorporated herein by reference in its entirety.

DESCRIPTION OF THE RELATED ART

The inventions disclosed and taught herein are directed to a nozzle forinjection of flavored liquids into a base liquid.

BRIEF SUMMARY OF THE INVENTION

As one of many possible brief summaries of the nature and substance ofthe inventions claimed herein a nozzle assembly may comprise a faceplatecomprising, a plurality of O-rings, and one or more injection ports; anozzle that cooperates with the plurality of O-rings, wherein the nozzlecomprises, a plurality of circumferential recesses, wherein each recesscooperates with the plurality of O-rings to define a syrup flow channel,and one or more radially spaced additive ports, wherein the one or moreradially spaced additive ports comprise a hole that passes from theoutside of the nozzle to a center of the nozzle; a valve stem assembly,wherein the valve stem assembly fits within the nozzle; and wherein theone or more injection ports are aligned with the syrup flow channels.The nozzle may comprise an upper cylindrical section, a flat facesection below the upper cylindrical section, sloped conical sectionbelow the flat face section and wherein the nozzle comprises a hollowcenter. The valve stem assembly may be capable of movement within thenozzle. The valve stem assembly may be capable of moving upwards tocause a base product to flow through the hollow center of the nozzle.The valve stem assembly may be capable of moving downwards to cause thevalve stem assembly to seat against a portion of the nozzle to stop theflow of a base product. The at least one additive check valve connectedto the faceplate may be capable of permitting the flow of an additive tothe nozzle assembly. The flow control valve may be capable ofcontrolling the dispensing of the additive. The nozzle assembly mayfurther comprise an external manifold that is capable of multiplexing aplurality of additives into one of the one or more injection ports. Thenozzle assembly may further comprise a three-way valve that is capableof permitting the flow of a flushing product to flush out the additive.The nozzle may further comprise a flow diffuser located proximate to thepoints where the additives are injected that is capable of furthermixing the additives with the base product.

As another of the many possible brief summaries of the nature andsubstance of the inventions claimed herein a method of dispensing aproduct from a machine may comprise activating a valve stem assembly toopen a dispense valve of the valve stem assembly to cause a base productto flow through a central opening in a nozzle assembly into a center ofa nozzle, wherein the nozzle assembly further comprises a faceplate;injecting a first additive through a first injection port in thefaceplate into a first syrup channel, wherein the first syrup channel isdefined by a first circumferential recess of the nozzle cooperating witha first pair of O-rings of the faceplate, into a hollow center of anozzle; injecting a second additive through a second injection port inthe faceplate into a second syrup channel, wherein the second syrupchannel is defined by a second circumferential recess of the nozzlecooperating with a second pair of O-rings of the faceplate, into ahollow center of a nozzle; and deactivating the valve stem assembly toclose the dispense valve to cause the base product to discontinue flowthrough the central opening of the nozzle assembly. The nozzle maycomprise an upper cylindrical section, which comprises the firstcircumferential recess and second circumferential recess; a flat facesection below the upper cylindrical section; and sloped conical sectionbelow the flat face section. The method may further comprise injecting athird additive through a third injection port in the faceplate into athird syrup channel, wherein the third syrup channel is defined by athird circumferential recess of the nozzle cooperating with a third pairof O-rings of the faceplate. The injecting a first additive through afirst injection port in the faceplate into a first syrup channel mayoccur for a limited period of time. The injecting a first additivethrough a first injection port in the faceplate into a first syrupchannel may occur prior to the injecting of a second additive through asecond injection port in the faceplate into a second syrup channel. Themethod may further comprise operating a check valve in the additivefluid path to prevent back flow of the additive fluid. The method mayfurther comprise operating a flow control valve to control thedispensing of the additives. The method may further comprise operating athree-way valve to permit the flow of a flushing product to flush outthe additive. The method may further comprise operating an integraldiffuser of the points where the additives are injected. The method mayfurther comprise multiplexing a plurality of additives through anexternal manifold into the first injection port.

None of these brief summaries of the inventions is intended to limit orotherwise affect the scope of the appended claims, and nothing stated inthis Brief Summary of the Invention is intended as a definition of aclaim term or phrase or as a disavowal or disclaimer of claim scope.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

The following figures form part of the present specification and areincluded to further demonstrate certain aspects of the presentinvention. The invention may be better understood by reference to one ormore of these figures in combination with the detailed description ofspecific embodiments presented herein.

FIG. 1A illustrates an isometric view of an improved multi-flavor foodand/or beverage dispenser in accordance with certain teachings of thepresent disclosure.

FIG. 1B illustrates a front view of an improved multi-flavor food and/orbeverage dispenser in accordance with certain teachings of the presentdisclosure.

FIGS. 2A-2D illustrate various views of an exemplary multi-flavordispense nozzle assembly in accordance with certain teachings of thepresent disclosure.

FIG. 3A illustrates an exemplary insertable nozzle of an exemplarymulti-flavor dispense nozzle assembly in accordance with certainteachings of the present disclosure.

FIG. 3B illustrates a cross-section view of an exemplary insertablenozzle with an exemplary optional flow control insert of an exemplarymulti-flavor dispense nozzle assembly in accordance with certainteachings of the present disclosure.

FIGS. 4A-4B illustrate cross-section views of portions of an exemplaryfaceplate of an exemplary multi-flavor dispense nozzle assembly inaccordance with certain teachings of the present disclosure.

FIGS. 5A-5C illustrates isometric views of three exemplary valve stemassemblies in accordance with certain teachings of the presentdisclosure.

FIG. 6 schematically illustrates an exemplary nozzle assembly with anexternal additive multiplexing manifold in accordance with certainteachings of the present disclosure

FIG. 7 illustrates a cutaway isometric view of an exemplary nozzleassembly showing an exemplary flow channel with a plurality of injectionports in accordance with certain teachings of the present disclosure.

While the inventions disclosed herein are susceptible to variousmodifications and alternative forms, only a few specific embodimentshave been shown by way of example in the drawings and are described indetail below. The figures and detailed descriptions of these specificembodiments are not intended to limit the breadth or scope of theinventive concepts or the appended claims in any manner. Rather, thefigures and detailed written descriptions are provided to illustrate theinventive concepts to a person of ordinary skill in the art and toenable such person to make and use the inventive concepts.

DETAILED DESCRIPTION

The Figures described above and the written description of specificstructures and functions below are not presented to limit the scope ofwhat Applicants have invented or the scope of the appended claims.Rather, the Figures and written description are provided to teach anyperson skilled in the art to make and use the inventions for whichpatent protection is sought. Those skilled in the art will appreciatethat not all features of a commercial embodiment of the inventions aredescribed or shown for the sake of clarity and understanding. Persons ofskill in this art will also appreciate that the development of an actualcommercial embodiment incorporating aspects of the present inventionswill require numerous implementation-specific decisions to achieve thedeveloper's ultimate goal for the commercial embodiment. Suchimplementation-specific decisions may include, and likely are notlimited to, compliance with system-related, business-related,government-related and other constraints, which may vary by specificimplementation, location and from time to time. While a developer'sefforts might be complex and time-consuming in an absolute sense, suchefforts would be, nevertheless, a routine undertaking for those of skillin this art having benefit of this disclosure. It must be understoodthat the inventions disclosed and taught herein are susceptible tonumerous and various modifications and alternative forms. Lastly, theuse of a singular term, such as, but not limited to, “a,” is notintended as limiting of the number of items. Also, the use of relationalterms, such as, but not limited to, “top,” “bottom,” “left,” “right,”“upper,” “lower,” “down,” “up,” “side,” and the like are used in thewritten description for clarity in specific reference to the Figures andare not intended to limit the scope of the invention or the appendedclaims.

Applicants have created an improved multi-flavor food and/or beveragedispenser including an improved nozzle for injection of additives into abase liquid.

Turning now to the figures, in particular to FIGS. 1A and 1B, animproved multi-flavor food and/or beverage dispenser 100 is illustrated.

For purposes of the present discussion, the food to be dispensed will bedescribed as a frozen non-carbonated beverage, such as a frozen lemonadebeverage. It should be understood, however, that the apparatuses andsystems described herein can be used with different food and beverageproducts including, but not limited to, frozen carbonated beverages,frozen alcoholic and non-alcoholic beverages, frozen yogurts, frozen icecreams and other dispensable food and beverage products.

Referring to FIGS. 1A and 1B, the illustrated dispenser may include atouch screen 102, a dispense button 104, a multi-flavor nozzle assembly106 and a dispense region 108. Touch screen 102 and dispense button 104are optional features. Dispense button 104 optionally could be ahardware or software dispense button.

In one embodiment, the touch screen 102 provides a graphical userinterface in the form of a display that provides one or more screens ofoptions related to the food/beverage item to be dispensed. For example,in one embodiment, the dispenser may be set up to deliver a baselemonade product and, optionally, the base lemonade product combinedwith one or more flavoring additives, e.g., a raspberry, cherry,blueberry or cotton candy additive. The user can touch one or more iconson the touch screen 102 to select dispensing of the base beverage and(optionally) dispensing of the base beverage in combination with one ormore flavoring additives. In the described embodiment, the touch screen102 communicates with (or is part of) a control system 220, such as anelectronic control system, that receives one or more inputs from thetouch screen 102 indicating the selected characteristics for thedispensed product. Electronic control systems are described in U.S. Pat.Pub. No. US 2008/0041876, which is incorporated herein by reference inits entirety.

In the embodiment described above, once the user has used the touchscreen 102 to make a selection about the characteristics of the productto be dispensed, the user can activate the dispense button 104 to causethe desired food/beverage item to be dispensed by the machine.

In one embodiment, the machine is a frozen beverage machine in which afrozen base beverage product (e.g., a base lemonade product) is formedin a freezing barrel. In this embodiment, dispensing of the selectedproduct is obtained by having the electronic control system 220—inresponse to the activation of the dispense button 104—activate a maincontrol valve to permit dispensing of the base beverage product.Depending on whether a flavoring additive was selected, the controller220 can also activate one or more secondary control valves to cause oneor more flavoring additives to be dispensed into the flowing basebeverage product such that the product actually dispensed from themulti-flavor nozzle assembly 106 is a mixture of the base beverageproduct and the selected flavoring or flavorings.

When only one flavoring is selected, the electronic controller 220 cancause dispensing of the base flavor for a limited period of time (e.g.,one second) and then cause dispensing of the combination of the baseflavor and the selected flavoring for as long as the dispense button isactivated. Alternatively, the controller 220 could cause the dispenserto immediately begin dispensing the mixture of the base beverage and theflavoring as soon as the dispense button 104 is activated.

In embodiments where the selected flavorings are each associated with adifferent color (e.g., blue for blueberry, red for cherry, purple forraspberry, pink for cotton candy), dispensing of the base beverage alonefor a limited period, followed by a dispensing of the mixture of theflavoring and the base fluid, will allow the operator of the dispenserto visually perceive the addition of the selected flavorings.

When multiple flavorings are selected, the electronic controller 220 cancause the dispensing of the selected product in a variety of ways. Inone embodiment, the controller 220 can cause the machine to dispense thebase product simultaneously combined with all selected flavorings. Thiscan be done with, or without, an initial flow of the base fluid alone asdescribed above.

In another embodiment, the selection of multiple flavorings can resultin a “layered” dispensing where the base product combined with oneselected flavoring is dispensed for a first period of time, and the baseproduct combined with the second flavoring is dispensed for a secondperiod of time, followed by a dispensing period with a third selectedflavor, and continuing in the same manner if other flavors are selected.In this embodiment, the layering can be accomplished in a variety ofways. In one such way, the layers are relatively “thick” such that thereis little mixing of the various selected flavorings. Such layering couldresult, for example, in a drink having a visible layer of base product,a visible layer of product mixed with a first flavoring, and any otherselected flavorings.

In another way, the base product and flavorings can be dispensed in verylimited layers (e.g., with each layer associated with a dispense periodof 1-2 seconds or less). In such an embodiment, there will be limitedvisible layers, and the dispensed product will have a more uniform tasteand appearance.

In another way, the selection of multiple additives will cause thedispensing of the additives to be injected in the order in which theywere selected.

The manner in which the product is layered, or whether it is dispensedwith all flavorings at the same time, may be selected using the touchscreen 102.

In one embodiment, once the touch screen 102 is used to select thedesired drink characteristics, the dispenser will dispense producthaving those characteristics for as long as the dispense button 104 isdepressed. In another embodiment, the touch screen 102 may also be usedto select a desired dispensed portion (e.g., by size: small, medium,large or by volume: 8 oz., 12 oz., 16 oz) and activation of the dispensebutton may result in dispensing of the product for a period sufficientto dispense the selected portion.

Details of an exemplary multi-flavor dispense nozzle 106 are provided inFIGS. 2A-2D. FIG. 2A provides a front level view of the multi-flavordispense nozzle 106, FIG. 2B provides a side view of the same and FIGS.2C and 2D provide cross-sections at various points.

Referring to FIG. 2A, an improved multi-flavor dispense nozzle assembly106 is illustrated. The improved assembly includes a faceplate 200; apneumatically actuated valve stem assembly 202; a multi-flavor nozzle204 that cooperates with O-rings positioned in the faceplate 200 (notnumbered in FIG. 2A, but shown, for example, in FIG. 2D) to define aplurality of syrup channels; and additive injection ports 206A and 206B,one or more associated with each syrup channel.

In operation, activation of the dispense button 104 will cause movementof the valve stem assembly 202 upward, which will open the main dispensevalve of the valve stem assembly and cause the base beverage product tobegin flowing through a central opening in the multi-flavor dispensenozzle 106 and out of the multi-flavor nozzle 204 to the dispense region108. At the time determined by the controller system 220 a number ofadditive control valves will activate causing additives to flow from astorage region (tank, bag in a box, etc) through tubing (not shown),through the additive injection port 206 associated with the flavoring,into the syrup channel associated with the flavoring and into thedispensed main beverage.

FIG. 2B shows a side view of the multi-flavor nozzle 106. It illustratesthe faceplate 200 and two additive injection ports 206A and 206B. In theillustrated embodiment, each injection port is formed from an opening inthe faceplate, a fitting that is inserted into the opening and tubingthat runs exterior to the faceplate (not illustrated) coupled to a valvethat can be activated to control the flow of an additive through thetube and into the injection port. More or fewer additive injection portsmay also be used and implemented.

FIG. 2B also shows the optional use of a check valve 208 that may beincluded in the fluid path of any additives to prevent back flow of thedispensed product back to the reservoir containing the additive.

FIG. 2C provides still further details of a described exemplaryembodiment of the multi-flavor nozzle 106. It shows the faceplate 200,the valve stem assembly 202 and the optional check valve 208. It alsoillustrates in a schematic fashion a flow control valve 210 that can beused to control the dispensing of the additives, which may be flavoringadditives. As described above, in addition to operating the mainpneumatic valve associated with the flow of the base product, theelectronic controller may control operation of the flow control valvesto ensure that the appropriate volume of additive is added when thatadditive is selected by the user and to ensure that the additive flow ismaintained at a consistent flow rate. The use of an electric flowcontrol valve 210 and an electronic controller 220 is significantbecause the amount of additive that should be added for a given flow ofbase beverage product will not be constant, but will vary with thenature of the additive. For example not all flavoring additives haveequal strength and the proper ratio of additive to base beverage toachieve a desirable drink mix The use of an electronic controller 220and electric control valves enables the described dispenser to bereadily adapted to the dispensing of most any additive product—basebeverage mixture.

In one embodiment, the electric flow control valves 210 may be formedfrom pressure compensating ceramic flow control pistons that have amanually adjustable flow rate in a “bang-bang” control scheme. In thisembodiment, when the electronic controller desires to dispense aparticular additive, a signal is sent to a solenoid to open the valveassociated with that additive and when the controller wishes to ceasedispensing the additive it de-energizes the solenoid causing the valveto close.

Alternate embodiments are envisioned where the controller 220 and theflow control valve form a closed-loop control system that reads apressure differential and calculates a flow rate. In such an embodiment,the error between the desired and actual flow rates would be used tocontrol a high-speed solenoid, which meters a desired amount of syrupinto the base flavor flow.

FIG. 2C also illustrates the inclusion of an optional three-way valve212. Such a three-way valve may be used to permit flow of a neutralflavored product (or other gas or liquid) (e.g., the base product oranother product) to “flush” out a syrup channel after each use toprevent flavor mixing and/or to eliminate any color rings associatedwith the syrup channel that would be visible through the faceplate.

As a final matter, FIG. 2C illustrates the use of flow diffusers 230.These flow diffusers (optional) are located downstream or in the streamof the syrup channels and downstream of the points where the additivesare injected into the base product flow. The use of diffusers 230 canhelp with mixing the additives with the base product as the additivesand base product flow through the valve.

In alternate embodiments, a variety of alternative flow diffusers 215may be integrated directly into the valve stem assembly 202 as shown inFIG. 2D.

The cross-section of FIG. 2D illustrates in greater detail some of theseals and sealing surfaces associated with the exemplary embodiment ofthe multi-flavor nozzle assembly 106 described above.

Referring to FIG. 2D, a primary seal 213 is illustrated which mayprevent flow of any of the additives into the base mixture. The primaryseal 213 may also be an upper seal. This seal may be formed using anO-ring, an appropriate gasket or both. A secondary seal 214 shown aspart of an alternative embodiment of the valve stem assembly 202 mayalso be provided at the juncture of the valve stem assembly 202 and thefaceplate 200. The secondary seal 214 is optional. A secondary seal 214may also be a lower seal. The purpose of this seal is to minimizedrippage of the additives and/or the base product through the dispensingvalve when dispensing is not desired.

FIG. 2D also illustrates the O-rings 218A-E that cooperate with theinsertable nozzle 204 to form the syrup channels and the formed syrupchannels 216. Only some of the O-rings and syrup channels are numberedin FIG. 2D.

FIGS. 3A, 3B, 4A and 4B illustrate the manner in which the insertablenozzle 204 and O-rings positioned within the faceplate can cooperate toform the described syrup channels 216.

Referring first to FIG. 3A, an exemplary insertable nozzle 204 isillustrated. As is shown, the nozzle 204 is hollow through the center310 and defines an upper cylindrical section 300, a flat face section302 and a sloped conical section 304. Alternatively, sections 300, 302,and 304 may be formed into different shapes than as described in FIG. 3Aor 3B. In operation, the valve stem assembly 202 fits within the nozzle204 such that movement of the valve of valve stem assembly 202 upwardswill cause the base product to flow through the interior of the nozzle204 and movement of the valve of valve stem assembly 202 downward willcause the valve to seat against the nozzle 204 and stop the flow of thebase product. The valve stem assembly 202 can seal against the upperand/or lower portion of the nozzle 204 depending on whether or not theprimary seal 213 or secondary seal 214 are in place. Other shapes andconfigurations are envisions for nozzle 204.

An alternative embodiment of the nozzle 204 illustrated in FIG. 3Billustrates a flow limiting insert 311 with sealing O-ring 312 that canbe used to limit the flow of the base liquid and also be used as thesealing surface for the primary seal 213.

The upper cylindrical section 300 further defines circumferentialrecesses 306A, 306B, 306C and 306D. In the illustrated embodiment, thesecircumferential recesses define the syrup flow channels.

In the examples of FIG. 3A-3B, each circumferential recess furtherdefines a plurality of radially spaced additive ports, two of which arelabeled as 308A and 308B. Each additive port 308A, 308B in the examplecomprises a hole that passes from the outside of the nozzle 204 to itsinterior. As such, when an additive is injected into a syrup flowchannel (e.g. 306A, 306B, 306C, 306D) with pressure, it will be forcedthrough the additive ports 308A, 308B and into the flow of the baseproduct flowing through the interior of the nozzle 204. In theillustrated example, each circumferential recess defines four additiveports, and the additive ports are equally spaced about the recess.

Further details of the faceplate are shown in FIGS. 4A and 4B.

Referring to FIG. 4A the portion of the faceplate 200 that receives thenozzle 204 is illustrated. As illustrated in FIG. 4A, the faceplatedefines a plurality of O-ring recesses 402A, 402B, 402C, 402D, and 402E.Referring to FIG. 4B, the faceplate further provides a plurality ofinjection port 206A, 206B, 206C and 206D. When the disclosed dispenseris fully assembled, O-rings (218A-E) will be inserted into the O-ringopenings and the nozzle 204 will be then inserted into the cavity withinthe faceplate 104 in which the O-rings are positioned. The combinationof the O-rings (218A, 218B, 218C, 218D, and 218E) and thecircumferential recesses (306A, 306B, 306C, and 306D) in the nozzle willresult in the creation of four syrup flow channels. More or fewer thanfour syrup flow channels may also be used and implemented.

FIGS. 5A, 5B, 5C illustrate isometric views of three exemplary valvestem assemblies 202. FIG. 5A illustrates a valve stem assembly 202 usingoptional integrated diffusers 215. FIGS. 5B and 5C illustratealternative embodiments of the valve stem assembly 202, which may beused with the flow-limiting nozzle insert 311.

FIG. 6 illustrates schematically an exemplary embodiment of the nozzleassembly 106 where multiple additives may be multiplexed into a singleinjection port 206 from an external multiplexing manifold 600. Optionaladditive flow path check valves 208A-D may be integrated into themultiplexing manifold 600 or may be located in the additive flow pathbefore the manifold.

In alternative embodiments of the multiplexing manifold 600, one of theadditives may be replaced with a purging or flushing medium to flush outthe manifold line to the nozzle assembly 106, and the nozzle assembly106.

FIG. 7 illustrates a cutaway isometric view of an alternative embodimentof the nozzle assembly 106 where multiple injection ports (206A, 206B,206C, 206D) are connected to the same circumferential recess (306C),whereas in FIGS. 4A and 4B the injection ports 206A-D are each connectedto its own respective circumferential recess (306A-306D). FIG. 7illustrates a plurality of radially spaced additive ports, two of whichare labeled as 308A and 308B.

Other and further embodiments utilizing one or more aspects of theinventions described above can be devised without departing from thespirit of Applicant's invention. Further, the various methods andembodiments of the methods of manufacture and assembly of the system, aswell as location specifications, can be included in combination witheach other to produce variations of the disclosed methods andembodiments. Discussion of singular elements can include plural elementsand vice-versa.

The order of steps can occur in a variety of sequences unless otherwisespecifically limited. The various steps described herein can be combinedwith other steps, interlineated with the stated steps, and/or split intomultiple steps. Similarly, elements have been described functionally andcan be embodied as separate components or can be combined intocomponents having multiple functions.

The inventions have been described in the context of preferred and otherembodiments and not every embodiment of the invention has beendescribed. Obvious modifications and alterations to the describedembodiments are available to those of ordinary skill in the art. Thedisclosed and undisclosed embodiments are not intended to limit orrestrict the scope or applicability of the invention conceived of by theApplicants, but rather, in conformity with the patent laws, Applicantsintend to fully protect all such modifications and improvements thatcome within the scope or range of equivalent of the following claims.

What is claimed is:
 1. A multi-flavor frozen beverage dispenser, comprising: a user interface comprising a dispense icon and a plurality of flavor icons each flavor icon associated with at least one additive; a base product freezing chamber; a dispense valve in fluid communication with the freezing chamber and comprising a dispense valve housing having a central bore and at least one injection port communicating from an exterior of the dispense valve housing into the central bore; a nozzle insert positioned within the central bore, and defining a central opening passing there through; first and second O-rings positioned between an outer surface of the nozzle insert and the central bore; the nozzle insert and the central bore defining at least one additive flow channel circumferentially surrounding the central opening, wherein the at least one additive flow channel is positioned between the first O-ring and the second O-ring and wherein the at least one additive flow channel is aligned with the at least one injection port such that an additive can flow through the at least one injection port into the at least one additive flow channel; the nozzle insert further comprising a plurality of ports continuously communicating from the at least one additive flow channel and into the central opening; a dispense valve stem positioned within the dispense valve, and movable between at least a first position permitting a flow of base product through the central opening, and a second position where flow of base product through the central opening is blocked; a manifold external to the dispense valve and in fluid communication with the at least one injection port, and comprising: a plurality of additive inputs, each input configured to receive an at least one additive; a purge input configured to receive a purging fluid; a check valve associated with each input; and an output communicating with the at least one injection port to inject one or more additives or the purging fluid into the at least one injection port; a flow diffuser positioned within the central bore and configured to assist mixing of an additive with the base product as the additive and base product flow through the dispense valve; and a controller operable in response to the selection of one or more flavor icons and the dispense icon to move the valve stem to the first position and to cause additives to be dispensed into the base product such that the beverage dispensed by the beverage dispenser is a mixture of the base product and the one or more additives.
 2. The multi-flavor beverage dispenser of claim 1, wherein the valve housing is integrally formed in a faceplate.
 3. The multi-flavor beverage dispenser of claim 1, further comprising a plurality of additive control valves, input tubing coupling each additive control valve to an additive input, and supply tubing coupling each additive control valve to a source of additive.
 4. The multi-flavor beverage dispenser of claim 3, wherein the controller is operable to activate the dispense valve for a first interval when a flavor icon is selected on the user interface and the dispense icon is activated, and to activate one or more additive control valves for a second interval in response to activation of the dispense valve, wherein the first interval is different from the second interval.
 5. The multi-flavor beverage dispenser of claim 4, wherein the controller is operable to activate a purge control valve after the one or more additive control valves have been deactivated.
 6. The multi-flavor beverage dispenser of claim 1, wherein the first and second O-rings are retained within respective recesses formed in the central bore.
 7. The multi-flavor beverage dispenser of claim 1, wherein the manifold is configured to multiplex a plurality of additives into the at least one injection port.
 8. A multi-flavor beverage dispenser, comprising: a freezing chamber configured to freeze a beverage base product; a dispense valve in fluid communication with the freezing chamber and comprising a valve housing defining at least one injection port passing from an exterior of the valve housing into an interior of the valve housing; a nozzle insert positioned within the valve housing, and defining a central opening passing there through; a first O-ring positioned between the nozzle insert and the valve housing; a second O-ring spaced from the first O-ring, and positioned between the nozzle insert and the valve housing; the nozzle insert and the valve housing defining at least one a channel circumferentially surrounding the central opening, and positioned between the first and the second O-ring, the at least one channel aligned with the at least one injection port such that a fluid provided to the at least one injection port can flow into the channel; the nozzle insert further defining a plurality of ports passing through the nozzle insert in fixed relationship to the at least one channel and configured to permit flow of fluid in the at least one channel through the nozzle insert and into the central opening; a valve stem positioned within the valve housing, and movable between at least a first position permitting a flow of base product through the central opening and a second position where the flow of base product through the central opening is blocked; a manifold located external to the valve housing and in fluid communication with the at least one injection port, and comprising: a plurality of additive inputs, each additive input configured to receive an additive; a purge input configured to receive a purging fluid; a plurality of check valves, each valve associated with an individual additive input; and an output fluidly coupled to the at least one injection port and configured to communicate one or more additives or purging fluid to the at least one injection port; and a flow diffuser configured to assist with the mixing of additive with base product as the additive and base product flow through the valve housing.
 9. The multi-flavor beverage dispenser of claim 8, wherein the valve housing is integrally formed in a faceplate.
 10. The multi-flavor beverage dispenser of claim 8, further comprising: a user interface defining a dispense icon and a plurality of flavor icons, each flavor icon selectable and associated with an additive; and a controller operable to activate the valve stern to move the valve stem to the first position in response to actuation of the dispense icon and operable to cause additives to be dispensed such that the beverage dispensed by the beverage dispenser is a mixture of the base product and the one or more additives.
 11. The multi-flavor beverage dispenser of claim 10, wherein the controller is operable to maintain the valve stem assembly in the first position for as long as the dispense icon is selected.
 12. The multi-flavor beverage dispenser of claim 11, wherein the controller is operable to dispense the additives at different intervals when more than one flavor icon is selected.
 13. The multi-flavor beverage dispenser of claim 8, wherein the first O-ring is retained within a recess formed in the valve housing.
 14. A valve for use in a beverage dispenser, the valve comprising: a valve body comprising a central bore passing through the length of the body and configured to permit the flow of a product through the valve body; the valve body further defining an additive port passing through the body to permit flow of an additive into the central bore; an insert positioned within the central bore, the insert defining an insert central bore generally aligned with the body central bore; the insert and the body defining an additive channel circumferentially surrounding the insert central bore, the additive channel fixedly aligned with the additive port such that additive can flow through the valve body into the additive channel; and the insert comprising a plurality of openings continuously communicating with the additive channel and positioned such that additive can flow through the insert into the insert central bore.
 15. The valve of claim 14, further comprising a manifold having a plurality of additive inputs and an output in fluid communication with the additive port in the valve body.
 16. The valve of claim 15, wherein the manifold further comprises a purge input in fluid communication with the additive port in the valve body.
 17. The valve of claim 14, further comprising a flow control valve.
 18. The valve of claim 14, further comprising an additive flow control valve.
 19. The valve of claim 14 further comprising an external manifold.
 20. The valve of claim 14, wherein the valve body defines an upstream portion for receiving the product and a downstream portion for dispensing an additive, and comprising a diffuser positioned with the valve body downstream of the insert.
 21. A multi-flavor beverage dispenser, comprising: a valve body comprising a central bore and an additive port communicating to the central bore; a nozzle configured to be positioned within the central bore, and having an outer wall and an inner wall, the inner wall defining a dispensing pathway configured for dispensing a product; the outer wall of the nozzle defining an additive channel circumferentially disposed about the nozzle; the nozzle comprising a plurality of ports continuously communicating from the additive channel to the dispensing pathway; and the body and nozzle configured such that when the nozzle is positioned in the central bore, the circumferential channel is sealed to the central bore, such that an uninterruptible flow path is established from the additive port to the circumferential channel and to the ports so that additive can be injected into product being dispensed through the pathway.
 22. The dispenser of claim 21, further comprising a pair of O-rings positioned on either side of the circumferential channel to seal the channel to the central bore.
 23. The dispenser of claim 22, further comprising a manifold external to the valve body and having a plurality of additive inputs and an additive output, the additive output in fluid communication with the additive port in the valve body.
 24. The dispenser of claim 23, wherein one of the additive inputs comprises an input for an additive purge fluid.
 25. The dispenser of claim 23, wherein each of the additive inputs is associated with a check valve configured to prevent additive from flowing out an additive input. 